This repo demonstrates how to render glyph using the MSDF technique using Go, GL and GLSL.
This code can load a 64x64px glyph and display it anti aliased at any resolution. It does not take care of generating the MSDF texture from a truetype font, only display is implemented. The interesting part is the fragment shader.
Please see https://github.com/Chlumsky/msdfgen for more detailed explanations about MSDF and credits.